301 Stainless Steel Sheet Metal Sheet Flat Stock Thin Plate Thick 0.01mm-1mm

For shim and gap-filling applications, thicknesses between 0.01 mm and 0.1 mm are typical. For spring clips and retaining tabs that need to flex and return, 0.2 mm – 0.5 mm is a common starting range. For structural backing plates or panels that need to resist bending under load, 0.5 mm – 1 mm is generally more appropriate. If you are unsure, start with a mid-range thickness and test deflection before committing to a final gauge.

301 stainless steel has a tensile strength that typically ranges from around 515 MPa in the annealed condition up to 860 MPa or higher in the full-hard condition, depending on the degree of cold work. For light structural brackets, spring elements, and retaining features, it performs well. For heavy structural load-bearing applications, consult an engineer to confirm the specific temper and thickness meet your load requirements.

301 stainless steel forms a passive chromium oxide layer that resists rust in typical indoor and light outdoor environments. However, it is not as corrosion-resistant as 304 or 316 grades. In environments with prolonged exposure to salt spray, chlorides, or aggressive chemicals, surface staining or pitting may occur over time. For marine or chemical-process environments, consider 316 grade instead.

Yes. Thin gauges (under 0.3 mm) can be cut with sharp tin snips or a craft knife and straightedge. Mid-range gauges (0.3 mm – 0.7 mm) work well with aviation snips, a nibbler, or a laser cutter. Thicker gauges up to 1 mm are suitable for waterjet cutting, plasma cutting, or CNC routing with carbide tooling. Always use cutting fluid or coolant when machining to extend tool life and reduce work-hardening at the cut edge.

Both are austenitic stainless steels, but 301 has a lower nickel content (6–8% vs. 8–10.5% in 304), which makes it more prone to work-hardening during forming. This is actually an advantage for spring and clip applications where you want the part to stiffen after bending. 304 offers slightly better corrosion resistance and is more commonly specified for food-contact and chemical-exposure applications. Choose 301 when spring-back strength matters; choose 304 when corrosion resistance is the priority.

Measure your finished part dimensions and add at least 5–10 mm on each edge to allow for clamping, cutting kerf, and any edge cleanup. Then select the smallest available sheet size that covers your layout. For example, if your part is 85 × 85 mm, the 100 × 100 mm sheet is the most efficient choice. If you are nesting multiple parts, sketch a layout first to confirm they all fit within the chosen sheet dimensions before ordering.

301 stainless steel can be welded using TIG or MIG processes with appropriate stainless filler wire (ER308L is commonly used). For very thin gauges (under 0.1 mm), laser welding or resistance spot welding is more practical to avoid burn-through. Soldering is possible with stainless-compatible flux and silver-bearing solder, though the joint strength will be lower than a welded connection. Always clean the surface thoroughly before welding or soldering to remove any oils or contaminants.